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The prospective data collection initiative on on small bowel, colorectal and anal cancer - a prospective observational cohort study.

The main objectives of this project are:- To start a prospective observational cohort study of patients who have been diagnosed with CRC, small bowel and anal cancer and follow them from time of diagnosis until death.- To prospectively collect data…

The cost-effectiveness of contingency management compared to standard cognitive behavioral treatment for treating cannabis use disorder in youth: A randomized controlled trial

We aim to investigate in an RCT the (cost-)effectiveness of CM, compared with usual care CBT in the treatment of CUD in youths aged 16 to 22 years. Both outpatient treatments are provided for 12 weeks.PRIMARY STUDY QUESTION:1. What is the efficacy…

Personalized elective neck irradiation guided by sentinel lymph node biopsy in patients with squamous cell carcinoma of the oropharynx, larynx or hypopharynx with a clinically negative neck: (chemo)radiotherapy to the PRIMary tumor Only. The PRIMO study.

To compare safety and efficacy of treatment with sentinel lymph node biopsy guided elective neck irradiation versus standard elective neck irradiation in patients receiving definitive (chemo)radiotherapy for squamous cell carcinoma of the…